Energy changes - Jamb Chemistry Past Questions and Answers

Question 81:

• JAMB 2016

The diagram represents

A. A spontaneous reaction
B. An exothermic reaction
C. A non-spontaneous
D. An endothermic reaction

Question 82:

• JAMB 2017

The constituent of air necessary in the rusting process are

A. O₂ and H₂O
B. Ar and CO₂
C. CO₂ and H₂O
D. O₂ and CO₂

Question 83:

• JAMB 2017

When ΔH is negative, a reaction is said to be

A. Endothermic
B. Exothermic
C. Reversible
D. Ionic

Question 84:

• JAMB 2018

Which of the following is used to power steam engines?

A. Lubricating oil
B. Coal
C. Bitumen
D. Diesel oil

Question 85:

• JAMB 2018

The end products of burning a candle in the atmosphere are water and

A. Carbon (II) oxide
B. Sulphur (IV) oxide
C. Carbon (IV) oxide
D. Sulphur (VI) oxide